JPH02224691A - Yacht suitable for hydro sailing and exhibition - Google Patents

Abstract

PURPOSE:To change the direction in accordance with the direction of a wind, to generate propelling power, and to obtain a sailing state that a spinnaker swells with wind by forming the spinnaker in a state that it swells, and mooring and holding it so that it can turn around a mast. CONSTITUTION:A spinnaker 6 is placed in front of a mast 5. The spinnaker 6 is formed solidly or semisolidly in a shape that it swells with wind by a hard or semihard resin compound material, formed roughly in an isosceles triangle, and hooked and racked to the upper part of the mast 5. Both edges of the lower part of the spinnaker 6 are connected to a pair of pins 9 provided on both sides of the rear part of the body of a yacht by the mooring and holding member 8. The spinnaker 6 turns around the mast 5 in accordance with the direction of a wind, and generates propelling power by receiving a wind.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to yachts, including both actual objects and models;
In particular, it relates to yachts having a spinnaker located forward of the mainsail. In particular, the invention relates to a yacht which, when implemented as a model, is suitable both for sailing on water and for display.

[Prior art]

Conventional yacht models consist of a main sail attached to a mast erected on the hull and a jib provided in front of the main sail.

By the way, many actual sailboats are equipped with a spinnaker in front of the main sail that allows the sail to take in the wind from behind. Since conventional spinnakers are made of cloth, they cannot maintain their inflated shape unless exposed to wind. When making a model of a yacht with such a spinnaker, if the spinnaker is made of cloth, it will not be possible to create the feeling that it is bulging out due to the wind.
When displaying a model, it becomes difficult to give a feeling close to the real thing.

Therefore, one idea is to manufacture the spinnaker by molding a resin material, but with this method, when the model is floated on water and sailed, it is difficult for the spinnaker to change direction freely according to the direction of the wind. cannot fully utilize its function as a thrust generating means.

In addition, conventional spinnakers are configured to provide propulsion to the yacht by receiving tailwinds or winds diagonally from behind, and when heading into the wind, the spinnaker is lowered and a jib sail is used instead. It was necessary to use it.

[Problem to be solved by the invention]

In order to form a sailboat with a spinnaker into a form suitable for display, the present invention provides that if the spinnaker is pre-formed in an inflated state to catch the wind, the function of the spinnaker cannot be fully demonstrated when sailing on water. The problems to be solved are the problems inherent in conventional spinnakers, such as the fact that they cannot be used when traveling against the wind.

[Means to solve the problem]

In order to solve the above problems, in the present invention, the spinnaker is formed in an inflated state to fill the wind, and the spinnaker is connected to the hull by suspending the upper end of the spinnaker from the upper part of the mast. The lower ends of both sides of the spinnaker are moored to the rear of the ship so that they can rotate around the mast with a space between them.

The subinnaker can be formed by molding a hard or semi-hard resin, and in another embodiment, it can also be formed by stretching a canvas over curved ribs. Preferably, both lower ends of the spinnaker are supported on the mast via relatively rigid booms, and the boom or spinnaker is connected to the rear of the hull by a string-like member. In another aspect of the present invention, since it may be difficult to support the lower end of the spinnaker with the boom alone, a support arm may be provided as reinforcing means for the boom. When implementing the present invention as a yacht model,
The lower ends of both sides of the spinnaker may be connected to pins implanted in the rear of the hull by wire or string-like members.

[For production]

In the present invention, the spinnaker is held in an inflated state to fill the wind, and its upper end is suspended above the mast so that it can rotate around the mast, so the spinnaker can be oriented according to the direction of the wind. It is possible to generate thrust by changing the wind and generating thrust.

Therefore, the use of the subinaker is not limited to cases where the wind blows from behind. Further, since the spinnaker is held in an inflated state filled with wind, when the present invention is implemented as a yacht model and the model is displayed indoors, the spinnaker will be in a sailing state filled with wind. Here, since the upper end of the spinnaker is suspended above the mast and the lower end of the spinnaker is connected to the hull or the mast, the position of the spinnaker can also be maintained in a sailing state. Also, due to the structure of the spinnaker, when the yacht is sailed on water using wind power, the spinnaker receives the wind from directly behind and not only runs downwind as if being pushed by the wind, but also curves diagonally. Even when running with the wind, the airflow flowing through the swollen side of the spinnaker is faster than the airflow flowing inside the spinnaker, so the pressure on the swollen side of the spinnaker decreases more than on the inside, and the airflow flows from the inside of the spinnaker to the outside. A so-called wing surface effect occurs in which lift is exerted in the direction of the ship, and the component force acting in the bow direction is added as a propulsive force during sailing. In the present invention, since the depth of the sail of the spinnaker can be increased, the propulsive force is also large and it is possible to perform good wind sailing.In addition, the lower ends of both sides of the spinnaker can be When the spinnaker is rotatably supported around the mast by connecting it to the hull with an adjustable string or material, when the hull tilts due to a crosswind, the spinnaker automatically moves in the tilted direction due to gravity. The spinnaker rotates, and the spinnaker faces diagonally sideways with respect to the leeward direction, acting like a jib.In other words, the spinnaker effectively utilizes the wind depending on the direction of the wind, such as tailwind, crosswind, or headwind. The direction can be changed freely, making it possible to perform wind-powered sailing by effectively utilizing the spinnaker.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Referring first to FIG. 1, a model yacht is shown in this figure. The yacht model shown in the figure has a hull 1, a keel 2 is disposed on the lower surface of the hull 1, and a rudder 3 is disposed on the rear lower surface. A mast 5 is provided on the hull 1 so as to rise upward, and a main sail 4 is attached to the mast 5. The main sail 4 is made of a flexible material such as cloth.

A spinnaker 6 is arranged in front of the mast 5.

The spinnaker 6 is made of a hard or semi-hard resin-based material and is formed into a solid or semi-solid shape with airflow. The spinnaker 6 has an approximately isosceles triangular shape, and its top is suspended on the top of the mast 5 by means of a mounting 7.

Both lower edges of the spinnaker 6 are connected by a mooring member 8 formed of wire to a pair of pins 9 provided on both sides of the rear of the hull. It is preferable that the mooring member 8 is rotatably attached to the pin 9. Further, as shown in FIG. 1, the lower part of the main sail 4 is connected to the rear of the hull 1 by a suitable mooring member 17.

The yacht model configured as described above can be displayed by being placed on a suitable frame. In this display state, the mooring member 8 made of wire supports the lower end of the spinnaker 6, so that the spinnaker 6 does not droop toward the mast 5 and is inflated to catch the wind. , and is held in a stretched position toward the bow by the wind. Further, when this yacht model is floated on the water surface and sailed by wind power, the spinnaker 6 rotates around the mast 50 according to the direction of the wind, and generates propulsive force by receiving the wind. At this time, the mooring member 8 is appropriately bent and does not restrict rotation of the spinnaker 60. Therefore, sailing by wind power becomes possible.

FIG. 2A shows another embodiment in which the present invention is applied to a yacht model. In this example, the spinnaker
A mooring member 10 attached to both edges of the lower end of the spinnaker 6 is formed into a substantially U-shape, and both ends of the mooring member 100 are coupled to both edges of the lower end of the spinnaker 6 . The central part of the mooring member 10 is
A rotating section is provided as shown at 10A in FIG. 2B, and the rotating section 1
0A is rotatably engaged with a pin 11 provided at the rear of the hull 1. The mooring member IO is formed of wire. The operation of this embodiment is similar to that of the previous embodiment.

FIG. 3A shows a yacht model as yet another embodiment of the present invention. In this embodiment, the upper end of the spinnaker 6 is mounted on the mast 5 by means of a mounting tool 13 as shown in FIG. 3B. Can be attached freely. For installation, use tool 13
is formed of a single wire and has a rod-shaped shaft portion 13A and a triangular frame portion 13B extending from the upper end of the shaft portion 13A, and the triangular frame portion 13B is coupled to the upper end portion of the spinnaker 6.

For installation, the shaft portion 13A of the tool 13 is inserted into eye metal fittings 7A provided at two vertically spaced apart locations on the upper part of the mast.

In this embodiment, since the attitude of the spinnaker 6 with respect to the mast 5 is maintained by the mounting tool 13, there is no need to hold the spinnaker 6 by holding its lower ends on both sides. Therefore, both lower ends of the spinnaker 6 are connected to mooring pins 9 on both sides of the rear of the hull 1 by string-like mooring members 12 . The middle part of this mooring member 12 has an adjustment mechanism for adjusting the length of the string! 2A is provided.

When the length of the string is adjusted by the adjustment mechanism 12A so that there is a margin, the spinnaker can be rotated within a range until the string is pulled to the left and right of the hull during sailing. When the cord is fully tensioned, the spinnaker is held securely against the hull, making it suitable for display.

FIG. 4 shows a yacht model according to still another embodiment of the present invention. In this embodiment, the side edge of the lower end of the spinnaker 6 is connected to an eye fitting provided on the mast 5 by a boom 14 made of a pair of wires. It is rotatably connected to 7B. Furthermore, both lower ends of the spinnaker 6 are connected to mooring pins 9 on both sides of the rear of the hull 1 by mooring strings 12. An adjustment mechanism 12A is provided in the middle portion of the mooring string 12 to adjust the length of the string. In conventional sailboats, the lower edge of the windward spinnaker is connected to the mast by a boom, and the edge of the spinnaker's windward sail is stretched along the wind flow. The boom cannot be repositioned accordingly.

In a sailboat model, since the spinnaker receives wind from all directions, it is preferable to provide a pair of booms at both lower ends of the spinnaker as in this embodiment.

FIG. 5 shows still another embodiment of the present invention.

In the yacht model of this embodiment, a pair of booms 15 connecting the lower end side edges of the spinnaker 6 to the mast 5 have an upper end 15A rotatably inserted into an eye fitting 7B on the mast 5 at one end, and an eye fitting 7B on the mast 5, respectively. Mast 5 below metal fitting 7B
Lower part 15 with one end inserted into eye metal fitting 7C provided above
B. The upper portion 15A extends forward substantially horizontally and is coupled to one side edge of the lower end of the spinnaker 6.
The aforementioned lower portion 15B is formed continuously at the front end of A. The mooring string 12 is connected to both lower edges of the spinnaker 6. In this embodiment, the upper part 15A and the lower part 15B
Both edges of the lower end of the spinnaker are supported by the boom 15 consisting of
serves to pull the lower ends of both sides of the spinnaker downward so that they do not spring upward.

FIG. 6A shows a modification of the embodiment shown in FIG. In this embodiment, a pair of left and right booms 15 that connect the lower end portions of both sides of the spinnaker 6 to the mast 5 have an intermediate portion 1 that extends continuously from the front end of the lower portion 15A, rearwardly downward and outward.
5C is formed, and a lower part 15B is formed continuously to the middle part 15C.
is formed. The mooring string 12 has a lower part 15B and a middle part 1.
It is connected to the ring part formed between the 5C and the 5C. In this embodiment, the intermediate portion 15C has a horizontally protruding Scooter, which serves to prevent the lower end portions of both sides of the spinnaker from shrinking inward when the spinnaker is exposed to strong winds.

FIG. 7A shows a modification of the embodiment shown in FIG. 6A. In this embodiment, the left and right booms 15 are formed of a single wire. That is, the lower part 1 of the left and right booms 15
5B are integrally connected by a ring portion 15D, and this ring portion 15D engages with a pin provided on a bracket 7D on the mast 5.

FIG. 8A shows an example of the configuration of the spinnaker 6. This embodiment is an integrally molded spinnaker in which ribs 18 are formed vertically and horizontally on the spine of the spinnaker. The ribs 18 serve to prevent the spinnaker, which is formed from a thin material, from sagging depending on the way it is supported, which would impede not only display but also sailing. The same objective can be achieved by forming the spinnaker by vacuum forming and gluing hoop material similar to the ribs to the spine of the spinnaker.

FIG. 9 shows another example of the configuration of the spinnaker 6. In this embodiment, the spinnaker 6 is integrally formed with a star-shaped reinforcing plate 19A at the upper end and star-shaped reinforcing plates 19B at both edges of the lower end. The star-shaped reinforcing plates 19AS and 19B function to prevent the spinnaker from being torn due to force concentrated on a portion of the connecting portion of the spinnaker 6 with the wire or string-like member due to strong winds.

10 to 13 show an embodiment in which the present invention is applied to an actual yacht, in which a spinnaker 6 has a substantially trapezoidal wind blowing portion 6a made of canvas material. Horizontal pockets 6b are formed horizontally at approximately equal intervals on the upper side, lower side and middle part of the wind receiving part 6a, and these pockets 6b
The ribs 6C are inserted. A wire rod 6d of a predetermined length having a cap 6e at both ends is attached to a rib 6C at the cap 6e.
can be attached to both ends of the The wire rod 6d is shorter than the rib 6C, and holds the rib 6C in an arcuately curved state. In this way, the spinnaker 6 is held in an inflated state with the wind in advance.

Both upper ends of the spinnaker 6 are suspended from the upper part of the mast 5 by cables 9a, and both lower ends are connected to the lower part of the mast 5 by a pair of booms 27. The end of the boom 27 on the spinnaker 6 side is connected to the rear of the hull by a cable 28. By making the length of this cable 28 a secondary reinforcement, the spinnaker 6 can be rotated around the mast 5 and held in the rotated position. Boom 27 is boom lift 27
It is connected to the middle part of the mast 5 by a and is supported by the mast 5. Therefore, the boom 27 is prevented from hanging down. When not using spinnaker 6,
The spinnaker 6 can be folded by loosening the upper rope 9a. FIG. 13 shows a state in which the spinnaker 6 is folded halfway.

FIG. 14 shows another embodiment in which the present invention is applied to an actual yacht, and the structure of the spinnaker 6 is the same as that of the spinnaker 6 of the previous embodiment. In this embodiment, a cable 30 is stretched from the top of the mast 5 to the bow of the ship.
0 is connected to the center of each pocket 6b into which the rib 6C is inserted. With this configuration, the spinnaker 6 can rotate about the cable 30. In this embodiment, since the spinnaker 6 rotates near the center line of the hull, it is possible to alleviate the problem that the hull tilts due to the weight of the spinnaker 6 when the spinnaker 6 rotates. can.

Figure 15 shows that a forward propulsion force is obtained by a spinnaker that receives wind from diagonally forward.
Due to the curved shape of the spinnaker 6, lift is generated in the direction shown by the arrow in the figure, and the sailing direction component of this lift becomes a propulsive force.

〔effect〕

As described above, in the yacht according to the present invention, the spinnaker is formed in an inflated state to fill the wind, its upper end is suspended above the mast, and the spinnaker is spaced apart from the mast at its lower ends on both sides. Since the spinnaker is moored to the ship's hull so that it can rotate around the mast, the direction of the spinnaker can be changed depending on the wind direction to generate forward propulsion. Therefore, the spinnaker can be used even against wind coming diagonally from the front. Furthermore, when the present invention is applied to a sailboat model, it is possible to maintain the spinnaker in a sailing state in which the spinnaker is swollen with wind when it is on display, and the sailboat model can be floated on the water surface and sailed by wind power. If this is done, the spinnaker will change direction depending on the direction of the wind, making it possible to obtain propulsion from the wind. Therefore, the spinnaker can function as a means of generating thrust not only when sailing downwind, but also when sailing diagonally in the direction of the wind, creating a yacht model suitable for both display and sailing. It becomes possible to obtain.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a yacht model showing an embodiment of the present invention;
Fig. 2A is a perspective view of a yacht model showing another embodiment of the present invention, Fig. 2B is a perspective view showing a part of the mooring member in the embodiment of Fig. 2A, and Fig. 3A is a perspective view of a yacht model showing another embodiment of the present invention. FIG. 3B is a perspective view of the yacht model showing the embodiment, and FIG.
Figure 5 is a perspective view of a yacht model showing still another embodiment of the present invention, Figure 5 is a perspective view of a yacht model showing still another embodiment of the invention, and Figure 6A is a yacht model showing a modification of Figure 5. A perspective view of the model; FIG. 6B is a perspective view showing the attachment of the boom in the embodiment shown in FIG. 6A; FIG. 7A is a perspective view of a yacht model showing a modification of FIG. 6A; FIG. 7B is an implementation of the embodiment shown in FIG. 7A. FIG. 8A is a front view showing another embodiment of the spinnaker, and FIG. 8B is a perspective view showing how the boom is attached in the example.
FIG. 9 is a front view showing another embodiment of the spinnaker, FIG. 10 is a perspective view showing an embodiment in which the present invention is applied to an actual yacht, and FIG. 11 is a partial sectional view of the embodiment shown in FIG. FIG. 10 is a front view of the yacht shown in FIG. 10, FIG. 12 is an enlarged front view showing how the ribs are attached to the spinnaker, FIG. 13 is a perspective view showing the folding of the spinnaker, and FIG. 14 is a perspective view of another embodiment. FIG. 15 is a diagram showing the relationship between wind flow and propulsive force. 1... Ship L 4... Main sail, 5...
...Mast, 6...Spinnaker 8...
・Mooring member, 9...pin. No. ! Figure 2B Ward Figure 3B Figure 6B Figure A Figure Figure Figure Figure Figure Rei Zukan I4 Figure

Claims (11)

[Claims] (1) In a yacht having a main sail attached to a mast erected on the hull and a spinnaker provided in front of the main sail, the spinnaker is held in an inflated state with the wind, and the spinnaker is A yacht characterized in that an upper end of the spinnaker is suspended above the mast, and lower end portions of both sides of the spinnaker are moored to the hull so as to be able to rotate around the mast while being spaced apart from the mast. (2) The yacht according to claim 1, wherein lower end portions on both sides of the spinnaker are connected to the mast via booms and to the rear of the hull by a string-like member. (3) In a yacht having a main sail attached to a mast erected on the hull and a spinnaker provided in front of the main sail, the spinnaker is held in an inflated state with the wind, and the spinnaker is The spinnaker has an upper end suspended on the upper part of the mast, and the spinnaker is connected to the cable at a position substantially along the longitudinal center line so as to be rotatable about the cable stretched from the upper part of the mast toward the bow; A yacht characterized in that both lower ends of the spinnaker are connected to the rear of the hull by string-like members. (4) The yacht according to any one of claims 1 to 3, wherein the spinnaker is held in an inflated state by a hard or semi-hard resin material. (5) The yacht according to any one of claims 1 to 3, wherein the spinnaker is configured by arranging curved ribs in the horizontal direction and covering the ribs with a canvas serving as a wind blowing section. A yacht. (6) In a yacht model having a main sail attached to a mast erected on the hull and a spinnaker provided in front of the main sail, the spinnaker is made of a hard or semi-hard resin material to create wind. The spinnaker is formed into a solid or semi-solid state, the upper end of the spinnaker is suspended from the upper part of the mast, and the lower ends of both sides of the spinnaker are connected to the ship's hull by wire or string-like members, respectively. Yacht model suitable for water sailing and display. (7) In a yacht model having a main sail attached to a mast erected on the hull, and a spinnaker provided in front of the main sail, the spinnaker is made of a hard or semi-hard resin material to trap wind. The upper end of the spinnaker is suspended from the upper part of the mast, the lower ends of both sides of the spinnaker are supported by the mast via a pair of booms, and the boom is connected to a string-like member. A yacht model suitable for sailing on water and for display, characterized by being connected to the rear of the hull. (8) In the yacht model according to claim 2, another support point is provided below the support point of the boom, and like the boom, the tip of the support arm that extends diagonally upward from this support point is attached to the boom. A yacht model suitable for sailing on water and for display, characterized by a supported tip. (9) The yacht model according to claim 3, wherein the string-like member is attached to an intermediate portion of the boom that is bent in a lower portion and protrudes laterally. (10) The yacht model according to any one of claims 1 to 4, wherein vertical and horizontal ribs are formed on the spine of the spinnaker. (11) The yacht model according to any one of claims 1 to 4, wherein star-shaped reinforcing members are fixed to the upper end and left and right lower ends of the spinnaker.